Sh. Dai, THE METHODOLOGY FOR THE ASSESSMENT OF THE SAFETY OF PRESSURIZED COMPONENTS CONTAINING WELDING DEFECTS AND THE RELATED EXPERT-SYSTEM, International journal of pressure vessels and piping, 60(2), 1994, pp. 127-132
A structural parameter for characterizing the grade of welding defect
damage is defined. The fuzzy fatigue diagram drawn by using data from
fatigue tests has been considered as the basis for evaluating the prob
ability of failure and the welding defect fatigue damage. The methodol
ogy for the safety assessment of pressurized components containing wel
ding defects in loading based on the theory of fuzzy sets for treatmen
t of imprecisions and uncertainties is proposed. An expert system aide
d assessment of welded destructive defects has been built by using Tur
bo-Prolog language.